[PATCH 20.11 v2] net/mlx5: fix LRO validation in Rx setup
Michael Baum
michaelba at nvidia.com
Tue Jun 28 17:33:56 CEST 2022
[ upstream commit a213b8682117711c8e92475c5bbb321a3d8428dd ]
The mlx5_rx_queue_setup() get LRO offload from user.
When LRO is configured, the LRO flag in rxq_data is set to 1.
This patch adds validation to make sure the LRO is supported.
Fixes: 17ed314 ("net/mlx5: allow LRO per Rx queue")
Signed-off-by: Michael Baum <michaelba at nvidia.com>
Acked-by: Matan Azrad <matan at nvidia.com>
---
v2: fix compilation issue.
drivers/net/mlx5/mlx5_rxq.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 4a263a5803..cb743a773c 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -754,8 +754,18 @@ mlx5_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
(struct rte_eth_rxseg_split *)conf->rx_seg;
struct rte_eth_rxseg_split rx_single = {.mp = mp};
uint16_t n_seg = conf->rx_nseg;
+ uint64_t offloads = conf->offloads |
+ dev->data->dev_conf.rxmode.offloads;
int res;
+ if ((offloads & DEV_RX_OFFLOAD_TCP_LRO) &&
+ !priv->config.lro.supported) {
+ DRV_LOG(ERR,
+ "Port %u queue %u LRO is configured but not supported.",
+ dev->data->port_id, idx);
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
if (mp) {
/*
* The parameters should be checked on rte_eth_dev layer.
@@ -766,9 +776,6 @@ mlx5_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
n_seg = 1;
}
if (n_seg > 1) {
- uint64_t offloads = conf->offloads |
- dev->data->dev_conf.rxmode.offloads;
-
/* The offloads should be checked on rte_eth_dev layer. */
MLX5_ASSERT(offloads & DEV_RX_OFFLOAD_SCATTER);
if (!(offloads & RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT)) {
--
2.25.1
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